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Patents > CPCs : CPC B64B1/00 or CPC B64C13/00 & Number of claims: 2-5

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Tech fields:
LTA (140) · None (68) · navigation (58) · frame (57) · airplane (48) · control (46) · stability (43) · balloon (42) · propulsion (42) · rudder (31) · Design (27) · airship (26) · steering (25) · dirigible (24) · propeller (22) · hybrid (21) · Wings (19) · construction (19)
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Supplementary to patent:
None (258) · Patent FR-1913-472867 (4) · Patent FR-1913-467415 (3) · Patent DE-1918-388537 (2) · Patent FR-1914-472867.19895 (2) · Patent FR-1912-451312 (2) · Patent US-1913-1118124 (2) · Patent FR-1911-438580 (2)
Related to aircraft:
Patent agent:
None (66) · Haseltine, Lake & Co. (15) · Armengaud jeune (14) · Marks & Clerk (14) · Munn & Co. (10) · Brewer & Son (8) · Boult, Wade & Tennant (8) · None (6) · Brandon frères (5) · Victor J. Evans (5) · Dupont et Elluin (4) · Abel & Imray (4) · C. Blétry (3) · H. Bœttcher fils (3) · G. F. Redfern & Co. (3) · Hippolyte Josse (3) · E. Blétry (3)
National tech categories:
None (116) · FR 6.4 (78) · USPC 244/30 (19) · USPC 244/233 (12) · FR 6.3 (12) · USPC 244/26 (9) · DE 77h.5 (9) · USPC 244/28 (7) · USPC 244/90R (6) · USPC 244/25 (6) · USPC 24/713.8 (6) · USPC 244/29 (5) · USPC 244/82 (5) · USPC 244/67 (4) · USPC 244/78.1 (4) · USPC 244/99 (4) · USPC 244/231 (4) · USPC 244/237 (4) · DE 77h.2 (4)
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